stiffness

(noun) the physical property of being inflexible and hard to bend.

(noun) the property of moving with pain or difficulty. Example: "He awoke with a painful stiffness in his neck."

(noun) firm resoluteness in purpose or opinion or action. Example: "A charming host without any touch of stiffness or pomposity."

(noun) the inelegance of someone stiff and unrelaxed (as by embarrassment). Synonyms: awkwardness, clumsiness, gracelessness.

(noun) excessive sternness. Synonyms: severity, severeness, harshness, rigor, rigour, rigorousness, rigourousness, inclemency, hardness. Examples: "Severity of character." "The harshness of his punishment was inhuman." "The rigors of boot camp."